97.周邊神經因創傷而橫斷所發生的變化,下列敘述何者正確?
(A)軸索(axon)被破壞,髓鞘一般仍維持完好
(B)橫斷近端(近神經細胞體)之神經纖維發生華勒氏變性(Wallerian degeneration)
(C)創傷性神經瘤(traumatic neuroma)是因神經再生而形成,它的成分是軸索,但不含其他支持細胞如許旺氏細胞(Schwann
cell),纖維組織母細胞(fibroblasts)等
(D)被切斷的神經之近端退化,一般只影響2-3結間節的距離
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統計: A(19), B(142), C(114), D(96), E(0) #1621208
統計: A(19), B(142), C(114), D(96), E(0) #1621208
詳解 (共 2 筆)
#2894719
Wallerian degeneration is a process that results when a nerve fiber is cut or crushed and the part of the axon distal to the injury degenerates.
Traumatic neuroma is a haphazard arrangement of small nerve fascicles, containing axons, Schwann cells, and perineurial cells, surrounded by fibrosis
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